<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
    <head>
        <title>学生管理系统首页</title>
    </head>
<body>

        <c:if test="${sessionScope.username eq null}">
    <a href="${pageContext.request.contextPath}/login.jsp">请登录</a>
        </c:if>

    <c:if test="${sessionScope.username ne null}">
             <a href="${pageContext.request.contextPath}/addStudent.jsp">添加学生</a>
            <a href="${pageContext.request.contextPath}/LookStudentServlet">查看学生</a>
        </c:if>

    </body>
</html>
